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Plastic waste, particularly plastic bottles, has become one of the major challenges in urban environmental management due to its increasing volume and potential to pollute ecosystems. In Bogor City, plastic waste constitutes a significant proportion of daily municipal solid waste, highlighting the need for effective and sustainable waste management models. This study aims to analyze the role of the Reduce, Reuse, Recycle Waste Processing Facility (TPS3R) in managing plastic bottle waste in Bogor City, with a case study of the Eco Techno Park at Ibn Khaldun University (UIKA) Bogor. The research employed a descriptive qualitative method using a case study approach. Data were collected through field observations, in-depth interviews with facility managers, and reviews of relevant documents and literature. The findings indicate that the TPS3R Eco Techno Park has successfully implemented the 3R principles through an integrated system supported by environmentally friendly technologies and a circular economy framework. Plastic bottle waste is managed through sorting, shredding, and recycling processes to produce value-added products, including plastic pellets, handicrafts, and construction materials. In addition, organic waste management is integrated through the cultivation of Black Soldier Fly (BSF) larvae. The facility has contributed to reducing the volume of waste sent to landfills by approximately 18%. The study implies that strengthening regulatory support, enhancing community participation, and developing circular economy-based business models are essential to ensure the long-term sustainability of waste management programs and support Bogor City's waste reduction targets.

This literature review synthesizes findings from fifteen peer‑reviewed studies published between 2020 and 2026 to examine the determinants of sustainable competitive advantage in the furniture industry. The analysis reveals that green innovation, environmental performance, and market orientation interact as core drivers of competitiveness, supported by theoretical perspectives including the Resource‑Based View, Natural Resource‑Based View, Institutional Theory, Circular Economy, and Strategic Management frameworks. The review highlights how internal capabilities, regulatory compliance, and responsiveness to consumer preferences collectively shape the ability of micro, small, and medium enterprises to adapt to sustainability demands in global markets. Evidence shows that eco‑innovation practices, waste recovery strategies, and clustering models enhance efficiency and legitimacy, while indicators of green growth and brand performance provide practical tools for evaluating sustainability outcomes. The synthesis underscores that competitive advantage in this sector is not determined by isolated variables but by systemic integration across resources, operations, and market dynamics. This study contributes theoretically by consolidating fragmented insights into a coherent conceptual model and practically by offering guidance for enterprises and policymakers to foster green transformation. The findings emphasize the urgency of aligning industrial practices with ecological integrity and suggest that future research should examine cross‑country variations, longitudinal impacts, and the integration of digital technologies with sustainability strategies to strengthen the resilience of furniture enterprises in the global economy.

The primary challenge faced by the community in Dewasari Village, Ciamis Regency, is the ineffective management of household organic waste, along with limited knowledge and skills in converting organic waste into value-added products. This community service program aimed to strengthen community capacity in developing smart environmental management through community-based Black Soldier Fly (BSF) maggot cultivation. The program was implemented through educational sessions, practical training on BSF maggot cultivation, community mentoring, and learning evaluation using a participatory approach involving the village government, community groups, and local youth. The results showed significant improvements in participants' knowledge and practical skills in managing organic waste, cultivating BSF maggots independently, and utilizing the harvested maggots as alternative livestock feed and an additional source of household income. The program also increased community awareness of the importance of sustainable and environmentally friendly waste management. Therefore, community-based BSF maggot cultivation can serve as an innovative solution for promoting smart, productive, and sustainable environmental management while strengthening community economic empowerment and improving household livelihoods in Dewasari Village.

This study aims to analyze a comparison of coal stockpile volumes using the DJI Mavic 3 Pro Unmanned Aerial Vehicle (UAV) method versus the truck count method at PT. Mitra Barito. Data collection was conducted through aerial photography using a UAV at altitudes of 60 meters and 70 meters, as well as Ground Control Point (GCP) measurements using GPS. The aerial imagery data was processed using photogrammetry software to generate orthophotos and a Digital Elevation Model (DEM), followed by a geometric accuracy test based on the Geospatial Information Agency Regulation No. 6 of 2018, using the Circular Error 90% (CE90) and Linear Error 90% (LE90) parameters. The research results show that high-quality processing at an altitude of 60 meters yields a CE90 value of 2.1619 meters and an LE90 value of 4.3656 meters, thereby meeting the accuracy standards for RBI maps at a scale of 1:5,000, Class 3 for horizontal accuracy, and a scale of 1:10,000, Class 3 for vertical accuracy. Volume calculations of the stockpile using UAVs yielded a result of 22,750.900 m³, while the truck count method produced a volume of 23,503.300 m³. The volume difference between the two methods was 753.400 m³, with a deviation percentage of 3.2%. Based on the research results, the UAV method is considered capable of providing relatively accurate calculations of coal stockpile volume.

The high volume of fishery waste often poses an environmental burden if not managed appropriately. Conversely, the circular economy concept offers sustainable solutions aligned with Maqasid Shariah principles in environmental preservation (Hifz al-Alam). This study aims to educate and implement the processing of fish waste into high-quality animal feed that meets halal standards (halalan thayyiban). This research employs a qualitative approach using the Asset-Based Community Development (ABCD) method. The stages include socializing the concept of Sharia circular economy, technical training on waste processing, and nutritional content testing of the feed. The findings indicate an 80% increase in community understanding regarding the economic value of waste. Technically, the fish waste processing successfully produced an alternative animal feed with high protein content, free from najis (impurity) through a purification process according to Islamic jurisprudence (fiqh). This education proves that the integration of circular economy and Sharia principles not only reduces environmental impact but also creates sustainable economic added value for local communities.

The high volume of fishery waste often poses an environmental burden if not managed appropriately. Conversely, the circular economy concept offers sustainable solutions aligned with Maqasid Shariah principles in environmental preservation (Hifz al-Alam). This study aims to educate and implement the processing of fish waste into high-quality animal feed that meets halal standards (halalan thayyiban). This research employs a qualitative approach using the Asset-Based Community Development (ABCD) method. The stages include socializing the concept of Sharia circular economy, technical training on waste processing, and nutritional content testing of the feed. The findings indicate an 80% increase in community understanding regarding the economic value of waste. Technically, the fish waste processing successfully produced an alternative animal feed with high protein content, free from najis (impurity) through a purification process according to Islamic jurisprudence (fiqh). This education proves that the integration of circular economy and Sharia principles not only reduces environmental impact but also creates sustainable economic added value for local communities.

This study aims to analyze the implementation of legal responsibility by goat farmers in managing waste from Etawa goat farming based on a circular economy model at Nusantara Farm, Sidoarjo. The study employs both normative juridical and empirical juridical approaches, with data collection techniques including literature review, interviews, and field observations.The results indicate that waste management is carried out through direct utilization, such as using livestock manure as organic fertilizer, selling waste, and distributing it to the surrounding community. These practices demonstrate that waste is not disposed of carelessly but rather reused, thereby creating economic and functional value.From a legal perspective, this condition reflects the fulfillment of the farmers' responsibilities in accordance with applicable laws and regulations, particularly in efforts to prevent environmental pollution. Furthermore, these waste management practices partially embody the principles of the circular economy, especially in terms of reuse.However, the current waste management practices remain conventional and are not yet optimally integrated. Therefore, there is a need to develop a waste management model based on an integrated closed-loop system to enhance the economic value of waste while ensuring more effective environmental sustainability.

Household food security and nutrition are crucial determinants of public health, especially in regions with limited access to high-quality animal protein. This study aims to analyze the impact of organic chicken farming and maggot utilization on household food security and family nutrition in Jayapura, Papua. An exploratory case study with a mixed-method approach was used, involving observation, in-depth interviews, and documentation. The findings revealed that maggot-based feed significantly improved chicken growth, health, and egg production while reducing feed costs. Families experienced improved protein intake, reduced food expenditure, and additional income from the sale of eggs, maggots, and compost. Furthermore, the integration of maggot farming into organic poultry systems supported waste management and environmental sustainability through a circular economy model. This research implies that maggot-based organic farming can be replicated as a sustainable community food security strategy in similar regions across Papua and Indonesia.

This study aims to analyze the influence of digital leadership, digital transformation, and circular economy practices on the economic performance of weaving SMEs and their contribution to the achievement of the Sustainable Development Goals (SDGs). This study employed a quantitative approach with an explanatory research design. Data were collected from 98 weaving SME owners or managers through questionnaires and analyzed using validity testing, reliability testing, classical assumption tests, and linear regression analysis. The findings show that digital leadership has a positive and significant effect on the economic performance of weaving SMEs. Digital transformation also has a positive and significant effect by expanding market access, improving operational efficiency, and strengthening customer relationships. In addition, circular economy practices have a positive and significant effect through resource efficiency, production waste reduction, and the creation of added value from residual materials. These findings indicate that the integration of digital leadership, digital transformation, and circular economy practices is a strategic approach to enhancing the competitiveness of weaving SMEs while supporting the achievement of the SDGs. This study contributes to the development of cultural-based SME studies by positioning digitalization and sustainability as key foundations for strengthening local economic performance.

There are chances for small and medium-sized businesses (SMEs) to boost local agricultural economies and increase profitability due to the rising demand for value-added dairy products.  This study uses the Hayami approach to evaluate the value distribution along the production chain in order to investigate the economic potential of cream cheese production in Samarinda, Indonesia.  In-depth producer interviews, cost documentation, questionnaires, and production process observations were used to gather primary data.  Identifying the main cost components and evaluating value generation at the processing step were the main objectives of the investigation.  The results show that processing adds a substantial amount to the total product value, with the acquisition of raw materials and packaging being the main sources of expense. Maximizing by-products like whey, implementing cost-effective packaging, and optimizing input sourcing are all ways to boost profitability. According to the report, local cream cheese makers can become more resilient and competitive by focusing on specialized markets, improving branding, and fortifying supply chain integration. These observations serve as the foundation for business plans and regulatory suggestions meant to promote long-term expansion in the artisanal dairy industry.

This study aims to analyze the implementation of rehabilitation at the investigation stage for drug abuse cases and the integrated assessment mechanism in influencing decisions to continue or terminate legal proceedings against drug users in Samarinda City. Drug abuse remains a serious issue in Indonesia, with more than 60% of inmates in correctional institutions being convicted of narcotics-related crimes. This condition indicates that conventional punitive approaches have not been effective in reducing drug abuse; therefore, the application of rehabilitative legal policies, as stipulated in Law Number 35 of 2009 on Narcotics and Supreme Court Circular Letter (SEMA) Number 04 of 2010, is necessary. This research employs a socio-legal research method with a qualitative approach, conducted through in-depth interviews with investigators at the Samarinda City Police (Polresta Samarinda) and officers at the National Narcotics Agency (BNN) of Samarinda, as well as a literature review of relevant laws and legal materials. The findings reveal that the implementation of rehabilitation at the investigation stage in Samarinda City has not been fully effective, due to limited resources, lack of inter-agency coordination, and the persistence of a repressive paradigm in handling narcotics cases.

Plastic waste management in rural areas, particularly in tourism villages, remains an environmental challenge that requires sustainable solutions. Negeri Tongging Village, as a tourism area around Lake Toba, has experienced an increase in household plastic waste that has not been managed optimally, potentially affecting environmental quality and community well-being. This community service activity aimed to enhance community awareness and capacity in plastic waste management through the implementation of a circular economy approach based on a waste exchange program and ecobrick production. A participatory approach was employed by actively involving the community in all stages of the activity, including socialization, program implementation, and evaluation. The program was carried out during the 2025 Community Service Program of Universitas Islam Negeri Sumatera Utara, consisting of circular economy socialization, collection of plastic waste through an exchange scheme with basic necessities, training on ecobrick production, and the provision of supporting facilities for environmental cleanliness. The results indicate an increase in community participation and environmental awareness, a reduction in improperly disposed plastic waste, and an improvement in community skills in processing plastic waste into useful products. In addition, the activity strengthened mutual cooperation and environmental responsibility among community members. In conclusion, the application of a circular economy approach through ecobrick-based activities can serve as an effective alternative solution for plastic waste management while simultaneously supporting sustainable community empowerment in rural tourism areas.

Allergic contact dermatitis (ACD) is an inflammatory skin process caused by specific allergens. ACD is classified as Type IV hypersensitivity, which is sensitive to allergens. A 57-year-old woman presented to the Dermatology and Venereology Clinic at Malahayati General Hospital in Bireun with complaints of red patches on her right and left legs and on her right and left elbows for approximately two months. According to the patient, the red patches initially appeared as circular patches with white scales the size of a coin on the elbows, accompanied by itching, which then spread. The itching worsened when the patient sweated, causing her to scratch, which enlarged the lesions and caused red wounds. The skin on the lesions tended to be dry with active edges and a calmer center. The itching improved after bathing. The patient is a housewife. The patient also said that she sweats frequently. According to the patient, the itching is not affected by the food she consumes every day. The patient was given steroid pharmacotherapy, namely 1% hydrocortisone cream, 0.1% mometasone furoate cream, and 10 mg cetirizine tablets once daily.

This community service program aims to utilize Balinese orange peel waste into marketable jelly candy in Battu Winangun Village, Lubuk Raja District, Ogan Komering Ulu Regency. The implementation method included socialization, 2-day practical training, and production mentoring involving 30 participants from women's farmer groups, PKK mothers, and youth youth organizations. The results of the activity showed an increase in participants' knowledge from 15% to 92% about the economic potential of Balinese orange peel waste, with 85% of participants successfully producing good-quality jelly candy that met the criteria of chewy texture, balanced sweet-sour taste, and attractive bright color. This program successfully processed orange peel waste rich in natural pectin (18-25%) into a functional low-calorie product with a shelf life of 2-4 weeks. The program's impacts included the formation of independent business groups, a 25-30% reduction in organic waste, and increased public awareness of a sustainable circular economy. The final evaluation showed a 90% level of participant satisfaction, with 87% of participants interested in continuing independent production. In conclusion, this program effectively increases the added value of local agricultural products, empowers the community's economy, and creates social transformation toward a self-sufficient and environmentally conscious village.

The growing pressure on urban drainage systems caused by blockages and environmental pollution highlights the importance of developing sustainable filtration materials. This study explores the use of coffee waste as an environmentally friendly filler integrated into polyester fabric (PE 24S) to create a green filtration medium for drainage applications. The research focuses on developing and characterizing the composite material through macro-photographic morphology analysis, tensile strength testing, and antibacterial evaluation. The findings demonstrate that polyester fabric modified with coffee waste shows a tensile strength of 54.024 ± 5.498 MPa, elongation of 111.128 ± 6.915%, and a Young’s modulus of 0.486 ± 0.543 MPa, indicating improved flexibility and sufficient mechanical durability for drainage system use. Additionally, antibacterial testing reveals that the composite material can inhibit microbial growth due to the presence of natural bioactive compounds found in coffee waste. Overall, the results suggest that coffee waste–enhanced polyester fabric offers a sustainable and mechanically reliable alternative for environmentally friendly drainage infrastructure while supporting circular economy practices.

This community service was carried out at the Sebesi Island Coconut Brown Sugar Artisans Group, South Lampung Regency, which faced the problem of low product competitiveness due to the use of conventional plastic packaging that was simple, unattractive, and environmentally unfriendly. This topic was chosen because it is relevant to the issue of the plastic waste crisis and the urgency of implementing a circular economy in island regions that are vulnerable to environmental pollution. The objective of this activity was to improve the hard and soft skills of partners through the innovation of environmentally friendly packaging designs based on local materials, while also increasing the economic value of coconut brown sugar products. The community service was carried out using a participatory approach through socialization, training, co-design of packaging, and assistance with production and marketing for 40 partners consisting of brown sugar craftsmen, BUMDes administrators, and local natural material weavers. The results of the activity showed an increase in the partners' skills in product design and packaging, strengthening of soft skills in the form of confidence and marketing readiness, as well as an increase in the selling value and image of the product in the local market. This activity confirms that environmentally friendly packaging innovation based on local resources is an effective strategy in empowering MSMEs as well as implementing a circular economy at the village level.

The increasing consumption of plastic, particularly single-use packaging, has led to a significant rise in household plastic waste, which poses a potential threat to environmental sustainability. One type of waste that remains underutilized is metallic plastic packaging. This Community Service activity aimed to enhance community knowledge and skills in processing metallic plastic packaging waste into handicraft products with functional value and economic potential. The activity was conducted in collaboration with the Family Welfare and Empowerment Group (PKK) of Ngringo Village, Karanganyar, involving 15 participants. The methods employed included a preliminary survey, educational outreach, hands-on practical training, and continuous mentoring. The effectiveness of the program was evaluated using pre-test and post-test assessments analyzed through the normalized gain (N-gain) method. The results demonstrated an improvement in participants’ knowledge and skills following the training, with an average N-gain value of 0.68, which falls within the moderate-to-high category. These findings indicate that the metallic plastic packaging waste processing training was effective in enhancing community capacity. Furthermore, the activity not only contributed to reducing plastic waste generation but also promoted the implementation of circular economy principles.

Urban waste management remains a major challenge in achieving a clean and sustainable environment, including in Bontoduri Sub-district, Makassar City. Waste banks, as a community-based waste management model, have significant potential to reduce waste generation while creating economic value. However, in practice, the role of waste banks has not been fully optimized due to limitations in institutional capacity, community participation, and managerial practices. This community service activity aimed to strengthen the role of waste banks in promoting a clean and economically valuable environment through participatory and community empowerment approaches. The methods employed included preparation, environmental education and socialization, waste bank management training, institutional mentoring, and activity evaluation. The program involved approximately 30 participants consisting of waste bank managers, local government representatives, and community members. The results indicated an increase in community awareness and understanding of waste segregation, improved managerial and administrative capacities of waste bank operators, and enhanced community participation in waste-saving activities. In addition, waste banks contributed to generating added economic value from household waste and reducing the volume of waste disposed of into the environment and landfills. This activity concludes that strengthening the role of waste banks through education, training, and continuous mentoring can serve as an effective strategy to support sustainable urban waste management based on circular economy principles.

The waste problem in Karanglewas Village, Kutasari District, Purbalingga Regency, continues to increase alongside agricultural, trade, and MSME activities, while the management system remains conventional, without sorting, resulting in environmental pollution and limited landfill capacity. This community service program aims to implement the Integrated Independent Waste Sorting and Processing Tool (PLASMA-T) as an innovative solution that processes organic waste into compost and melts plastic waste into paving blocks that are useful and economical. The activities are carried out in stages, including problem identification, socialization, technical training, operational trials, evaluation of results, and the handover of the equipment to the Mitra Sejahtera TPS, with ongoing assistance so that the community can operate the equipment independently. The expected outcomes include a reduction in waste volume at the TPS, increased community awareness and skills in waste management, and the creation of new business opportunities through compost and paving block products. Thus, this program not only addresses environmental issues but also strengthens the village's circular economy and has the potential to serve as a model for other regions.

The analysis methods used in this study include a case study on the use of closed-loop recycling and an evaluation of biopolymer performance across various industries, both of which are important components in the transformation of the manufacturing industry toward a circular economy. The research findings indicate that recycled materials can reduce carbon emissions by thirty to fifty percent and save production costs by fifteen to twenty-five percent. Artificial intelligence-based sorting technology improves sorting efficiency to 95 percent, and closed-loop recycling maintains the mechanical properties of materials up to 90 percent after four cycles. The degradation rate of biopolymers like PLA and PHA reaches 60-80% within six months, although production costs are still 2-3 times higher. The integrated approach increases resource efficiency by 45% and reduces waste by 60%. To achieve successful implementation, Extended Producer Responsibility (EPR) policies, strategic infrastructure investments, and collaboration from various parties thru the triple helix model must work together.